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migration/qemu-file: remove check on writev_buffer in qemu_put_compression_data

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The check of writev_buffer is in qemu_fflush, which means it is not
harmful if it is NULL.

And removing it will make the code consistent since all other
add_to_iovec() is called without the check.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190911132839.23336-2-richard.weiyang@gmail.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Wei Yang 2019-09-11 13:28:38 +00:00 • committed by Dr. David Alan Gilbert
parent 8504ddeca0
commit 89fe04b458
1 changed files with 1 additions and 3 deletions
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4
migration/qemu-file.c
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@ -760,9 +760,7 @@ ssize_t qemu_put_compression_data(QEMUFile *f, z_stream *stream,
}
qemu_put_be32(f, blen);
if (f->ops->writev_buffer) {
add_to_iovec(f, f->buf + f->buf_index, blen, false);
}
add_to_iovec(f, f->buf + f->buf_index, blen, false);
f->buf_index += blen;
if (f->buf_index == IO_BUF_SIZE) {
qemu_fflush(f);